Camera Device and Methods for Aiding Users in Use Thereof

1. A device comprising: a camera for capturing an image of a subject; a display unit; a controller configured to: acquire a reference image of the subject based on at least one of a location information of the device and the captured image compute a moving direction of the camera by comparing a relative position of the subject within the captured image with a relative position of the subject within the reference image, the captured image and the reference image being displayed on the display unit; and control the display unit to display the computed moving direction of the camera.

2. The device of claim 1 , further comprising a memory storing at least one reference image and meta data associated with the reference image, wherein the controller determines a camera setting value based on the meta data of the reference image.

3. The device of claim 1 , further comprising a memory storing a meta data table, wherein the controller stores a camera setting value at a photographing execution request time point in the meta data table when a photographing execution is requested, and determines the camera setting value based on the meta data table.

4. The device of claim 1 , wherein the controller further configured to compute the moving direction of the camera by comparing a histogram of the captured image with a histogram of the reference image, each histogram being changed according to the position of the subject.

5. The device of claim 1 , wherein the relative position of the subject within the captured image comprises the relative position of the subject within the captured image with a border of the captured image and wherein the relative position of the subject within the reference image comprises the relative position of the subject within the captured image with a border of the reference image.

6. The device of claim 1 , wherein the relative position of the subject within the captured image comprises the relative position of the subject within the captured image with a center of the captured image and wherein the relative position of the subject within the reference image comprises the relative position of the subject within the captured image with a center of the reference image.

7. The device of claim 1 , wherein the controller controls the display unit to display an indicator including at least one of a message, an icon, or a sub-image.

8. The device of claim 7 , wherein the controller recomputes the moving direction when a current position of the subject is changed, and controls the display unit to display at least one indicator indicating the recomputed moving direction.

9. The device of claim 1 , further comprising a memory storing at least one image along with associated meta data including a camera setting value of the at least one image, wherein the controller captures a photographic image according to the camera setting value and controls the memory to store meta data associated with the photographic image when a photographing execution is requested.

10. The device of claim 9 , further comprising a communication unit to perform data communication, wherein the controller controls the communication unit to transmit at least one of the photographic image and the meta data associated with the photographic image to an external device.

11. The device of claim 1 , wherein the controller further configured to: acquire, based on at least one of the location information of the device and the captured image, meta data corresponding to the captured image, determine a camera setting value based on the acquired meta data, and automatically set the camera according to the camera setting value.

12. The device of claim 11 , wherein the camera setting value comprises at least one of an exposure value, a shutter speed value, use or non-use of a flash, a white balance control value, a gamma compensation value, an aperture size, and an IOS sensitivity value.

13. The device of claim 11 , wherein the controller controls the display unit to display information about the determined camera setting value together with the captured image.

14. A device comprising: a camera for capturing an image; a display unit for displaying the captured image; a controller configured to acquire meta data corresponding to the captured image and a reference image including a subject information within the captured image based on at least one of a location information of the device and the subject information included in the captured image, to compute a moving direction of the camera based on the meta data and the reference image, and to control the display unit to display the computed moving direction of the camera and at least one of the reference image and captured image; and a communication unit to perform data communication, wherein the controller controls the communication unit to transmit at least one of the location information and the subject information to a server, and to receive the reference image and the meta data including a camera setting value associated with the reference image corresponding to at least one of the location information and the subject information from the server.

15. The device of claim 14 , wherein the server transmits the reference image and a histogram of the reference image to the device.

16. A method of controlling photographing in a device, the method comprising: capturing an image; acquiring, based on at least one of a location information of the device and the captured image, a reference image of a subject; computing a moving direction of a camera by comparing a relative position of the subject within the captured image with a relative position of the subject within the reference image, the captured image and the reference image being displayed on a display unit; and displaying the computed moving direction of the device.

17. The method of claim 16 , further comprising: acquiring, based on at least one of the location information of the device and the captured image, meta data corresponding to the captured image determining a camera setting value based on the acquired meta data; and automatically setting a camera according to the determined camera setting value.

18. A method of controlling photographing in a device, the method comprising: capturing an image of a subject; acquiring meta data corresponding to the captured image and a reference image including subject information within the captured image based on at least one of a location information of the device and the subject information included in the captured image; computing a moving direction of the device on the meta data and the reference image; and displaying the computed moving direction of the device and at least one of the reference image and captured image, wherein the acquiring the meta data comprises transmitting at least one of the location information and the subject information and receiving the meta data including a camera setting value with respect to the reference image corresponding to the location information and the subject information from a server.

19. The method of claim 18 , wherein the meta data received from the server comprises the reference image, the method further comprising: superimposing the reference image on the captured image; and displaying an indicator guiding a user to move the device to a position in which a representation of the subject in the captured image coincides with a representation of the subject in the reference image.

20. A method operable in a server, comprising: for each of a plurality of locations, storing a plurality of reference images containing subjects associated with each location; storing meta data associated with each reference image; receiving a captured image from a camera device, along with location information of the camera device and subject information of the captured image; comparing the received image and subject information with reference images associated with a location of the camera device, to obtain a matching reference image; and transmitting the matching reference image along with the meta data associated with the matching reference image to the camera device.

21. The method of claim 20 , wherein the meta data comprises at least one of an exposure value, a shutter speed value, use or non-use of a flash, a white balance control value, a gamma compensation value, an aperture size, and an IOS sensitivity value.

22. The method of claim 20 , wherein the server transmits to the subject information corresponding to the location of the camera device.